Aims: Lactobacillus parafarraginis ZH1 isolated from silage was characterized, and the effects of inoculating ZH1 and Lact. buchneri (LB) on the aerobic stability of sweet corn stalk (SCS) silage and whole-plant oat (WPO) silage ensiled at 15 and 30 degrees C were studied. Methods and Results: After ensiling of SCS or WPO in plastic bottle silo for 45 days, silos were opened, and aerobic stability was studied by monitoring temperature change with thermo recorders in silage for 6 days. SCS silage and WPO silage were well conserved naturally at both storage temperatures. However, silages were prone to aerobic deterioration due to the presence of residual yeasts. ZH1 inoculated silages ensiled at both temperatures, LB inoculated silages ensiled at 30 degrees C had better aerobic stability than the uninoculated silages and the LB-inoculated silage at 15 degrees C. Conclusions: Strain ZH1 improved the aerobic stability of SCS silage and WPO silage ensiled at both 15 and 30 degrees C, while LB improved the aerobic stability of silage only ensiled at the high temperature of 30 degrees C. Significance and Impact of the Study: The new strain ZH1 can be used as an effective inhibitor for aerobic deterioration of silage maintained from 15 to 30 degrees C.